-We wanted to test the high and low temperature, so need to know the performance of the battery, if the temperature changes.-Need a temperature range that is appropriate for your use of battery.
- We want to test the high and low temperatures. If you want to know the performance of the battery temperature - the temperature required for optimum use of the battery.
- we need test at high and low to find out about the efficiency of battery if changes in temperature.- to find the optimum temperature for the use of the battery.